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Details for Patent: 6,174,442

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Patent 6,174,442 protects VELPHORO and is included in one NDA.

This patent has twenty-two patent family members in twenty countries.

Summary for Patent: 6,174,442

Title: Adsorbent for phosphate from an aqueous medium, production and use of said adsorbent
Abstract:An adsorbent for phosphate from aqueous medium, particularly for inorganic phosphate or phosphate bound to foodstuffs from body fluids or foodstuffs, which contains beta-iron hydroxide stabilized by carbohydrates and/or by humic acid.
Inventor(s): Geisser; Peter (St. Gallen, CH), Philipp; Erik (St. Gallen, CH)
Assignee: Vifor (International) AG (St. Gallen, SE)
Application Number:09/077,944
Patent Claim Types:
see list of patent claims
Compound; Process; Formulation;
Patent Metrics:
Source: PatentQuant.com
Field: Chemical engineering
Back Citations: 16th percentile
Forward Citations: 0th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Vifor Fresenius
sucroferric oxyhydroxide
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Foreign Priority and PCT Information for Patent: 6,174,442

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany195 47 356Dec 19, 1995
PCT Information
PCT FiledDecember 19, 1996PCT Application Number:PCT/EP96/05695
PCT Publication Date:June 26, 1997PCT Publication Number: WO97/22266

International Patent Family for Patent: 6,174,442

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Spain2171758► subscribe
Brazil9612138► subscribe
Canada2240668► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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